Unmark - Gemini Watermark Remover
Unmark is a free web-based service and Chrome extension designed to remove the Gemini sparkle watermark from AI-generated images and videos, including content produced by Google's Gemini, Veo, and Google Flow. Users can upload Gemini stills for instant in-browser cleanup without an account, or use the cloud service for video watermark removal with support for clips up to 60 seconds, 1080p, and 100MB. Processed videos are saved to a Library and can trigger email notifications. Beyond watermark removal, Unmark offers background removal to cut out subjects and produce transparent PNGs, and is planning a Nano Banana creation tool. A Chrome extension lets users clean and download Gemini or Google Flow output directly during generation, and mobile apps for iOS and Android are indicated for account-based access. The service provides a free tier with credits for video and bulk processing, targeting creators who need clean AI media.
- Category
- Apis
- Pricing
- Free
Problem solved
Unmark addresses the need to remove the Gemini sparkle watermark that Google applies to AI-generated images and videos from Gemini, Veo, and Google Flow. It allows users to obtain clean, shareable media without the visible sparkle, preserving full quality and providing video processing that persists in a library rather than being lost when the browser tab closes.
Use cases
- Remove Gemini sparkle watermarks from AI-generated images
- Clean Veo and Google Flow video clips by removing watermarks from every frame
- Bulk process multiple images with the Cloud library
- Cut out subjects from images to transparent PNG backgrounds
- Use the Chrome extension to clean Gemini/Google Flow outputs while generating
- Create shareable marketing or social media content from Gemini images without watermarks
Audience
- Content Creators
- Developers
- Designers
- Business Users
- Hobbyists
Pros
- Free instant image watermark removal with no account required
- Supports video watermark removal for Veo and Google Flow
- Library saves processed videos and can email when ready
- Chrome extension cleans Gemini output during generation
- Background removal tool for transparent PNG cutouts
Cons
- Video processing requires credits and a cloud account
- Primarily focused on Gemini sparkle watermark, not a generic watermark remover
- Video processing limited to short clips (60s, 1080p, 100MB)
- Nano Banana creation tool is still in development
- No public API or self-hosted option mentioned
Official website: https://www.unmark.ink/
Canonical LambdaBase page: https://www.lambdabase.com/tools/unmark-gemini-watermark-remover